Thanks for your feedback! Good point also, the majority of listeners are using "not so good" headphones..
Therefore I also mix on standard Koss Porta pro occasionally.
Totally agree on the vocals part, will try to add some more reverb to my vocals, or lower the compression of the reverb. As for now, I have a compressor on the reverb of my vocals, and I feed a dry signal into the sidechain part to make the reverb duck whenever I am singing (thanks Gary Bromham
), may have to adjust this a bit.
I will contact some mastering studios soon, when I get the vocals under controll. Hope to learn something